Improvement in the manufacture of plow-irons



J M & HILL.

Manufacture of Plow-I No. 218,025. Patented July 29,1879.

ITNESSE I UNITED STATES PATENT OFFICE.-

JAMES M. HILL AND DAVID D. HILL, OF LOGAN, KANSAS.

IMPROVEMENT IN THE MANUFACTURE OF PLOW-IRONS.

Specification forming part of Letters Patent No. 218,025, dated July 29,1879; application filed April 26, 1879.

To all whom it may concern:

Be it known that we, JAMES M. HILL and DAVID D. HILL, of Logan, in thecounty of Phillips and State of Kansas, have invented certain new anduseful Improvements in the Manufacture of Plow-Irons; and we do herebydeclare that the following is a full, clear. and exact description ofthe construction and operation of the same, reference being had to theannexed drawings, making a part of this specification, and to theletters and figures of reference marked thereon.

Figure 1 of the drawings is a representation of a perspective of ourplow, and Fig. 2 is a view of the sheet of metal before the share isformed.

Our invention relates to that class of plows used for cutting sods; andit consists in the following-described features.

A is the sod-cutter. B is a colter formed of the same piece ofsheet-steel. D is the landside. E is the standard. F is an armsupporting the outer side of the cutter. G are bars attached to thecutter and extending rearward, and are attached to the handle K, formedin such a manner as to serve as amold-board, turning the sod over as itpasses over them.

A represents a sheet of metal, of proper width to form the cutter andcolter from. The line a a defines two cutters, ca, and two colters, b b,which are to be bent upward at dotted lines D b, thus forming the cuttercircular or convex upon its cutting-edge a and a colter from one pieceof metal without waste of the same.

The advantage of the convex cutting-edge is, that it presents a shearingcut and will free itself of any clogging substances, and being circular,the shearing being both ways from the center of the cut, the plow willfollow the draft, and not tend to or from the land side of the sod.

What we claim is The improvement herein described in the art of making acombined sod-cutter and colter for a plow in one piece and out of asingle piece of metal, to wit: cutting blanks from a strip or ribbon ofsteel, as shown in Fig. 2, along the line a, thus producing two blanks,of which the part a in each answers to the cutter, and the part I) forthe colter, the angle of one to the other being established by bendingalong the line b, as set forth.

In testimony that we claim the above we have hereunto subscribed ournames in the presence of two witnesses.

JAMES M. HILL. DAVID B. HILL.

Witnesses:

J. B. BODW'ELL, S. A. RoBINsoN.

